Merge rust-bitcoin#4504: CI: Manually remove trailing whitespace

6484413 CI: Manually remove trailing whitespace (Tobin C. Harding)

Pull request description:

  `rustfmt` bad robot, remove trailing whitespace already.

ACKs for top commit:
  apoelstra:
    ACK 6484413; successfully ran local tests

Tree-SHA512: d131fdbfdb049223d4f89c31b7138ba4fd9a32b469d4631e5efec9ec5405564ceec4ed5fb6253ca4eb99505e2b78c78717115ad57f3c648e837d4a4853b5f023

Author: apoelstra

.github/workflows/cron-weekly-rustfmt.yml

@@ -13,7 +13,8 @@ jobs:
         with:
           components: rustfmt
       - name: Run Nightly rustfmt
-        run: cargo +nightly fmt
+        # Run the formatter and manually remove trailing whitespace.
+        run: cargo +nightly fmt && find . -type f -name '*.rs' -exec sed -i 's/ $//' {} \;
       - name: Get the current date
         run: echo "date=$(date +'%Y-%m-%d')" >> $GITHUB_ENV
       - name: Create Pull Request